EDIT: Incidently, I feel I should explain for non-Aussies that One Nation are (were) a racist, nationalist, protectionist far-right party that espoused reactionary conservatism. Think the French National Front, or check Wiki.
On 13 June 1998, the One Nation Party took 23% of the vote in the Queensland state election, and 11 out of 89 seats. The Labor government of Peter Beattie took power from the National/Liberal coalition government of Rob Borbidge, but only with the support of an independent.
So my question is, what if One Nation won that election, or if not that taken part in a coalition government?
There are a few avenues by which this could take place.
1. They could simply win more seats under the present voting system. Of course, they're still way short of a majority, but they were the third biggest party in the legislature, after all; if they were to win, say, 17 more seats off Labor, they would have a plurality and might be able to form a coalition government. Of course, a swing of this magnitude would be probably out of the question.
2. Queensland could have formed a proportional voting system after the end of the Johrymander, to make sure 'one vote one value' actually happened. There were actually proposals to this effect at the time. If so, they could either gain a plurality through a more modest swing than in the previous proposal, or at least gain enough seats to block any government against them. With 23% of the seats, they could form a coalition with anyone.
3. Under the present system, the two independents could lose their seats, thus forcing Labor or the Coalition to form an accord or a coalition with One Nation. Understandably, the Coalition are more likely. With One Nation holding so many seats, they would be almost certain to demand cabinet positions.
So, from the above options, it's more likely that One Nation will form part of a coalition government, albeit a very major part, than take government in their own right. My next question is: what would the effects of this be? Could this prolong the One Nation movement, seeing as they can actually achieve their 'dreams' (had I said hallucinations, I might get attacked)?